Chapter 1545

"Diamond monkey? Wow ~ ~ ~ this name is grounded and domineering at the same time!"

"Hey hey, diamond monkey ~ ~ ~ what a rich meaning!"

"2C? Why not 2B?"

"It's not easy. You can know from your heels that ztm-nb has gone a long way in the launch vehicle. At least the diamond monkey-1 series is an example. After all, Tao produces one, two, and then 2B and 2C."

"Shit, so ztm-nb company is awesome!"

"This is not nonsense. It depends on the name of the company. Where is Niu ~ ~ ~ force? It's called real him m Niu ~ ~ ~ force..."

After Zhuang Jianye exposed the diamond monkey-2c liquid oxygen kerosene launch vehicle, the audience on the interactive platform suddenly fried the pot. Unexpectedly, ztm-nb company is actually developing the launch vehicle, which is not enough. It has a mature model.

This can make the audience in front of the TV very excited. You know, usually they can see the picture of the launch vehicle launch on the TV and what's going on in the plant. To tell the truth, non professionals don't know at all.

Because of this, when Zhuang Jianye said to take them to see the diamond monkey-2c, even out of curiosity, the audience in front of the TV was full of expectation.

Zhuang Jianye didn't let the audience in front of the TV wait too long. As the camera turned to two workshops, he came to the door of a huge factory.

After some simple dustproof treatment, Zhuang Jianye took the live broadcast team into the plant, and then an uncontrollable exclamation broke out on the interactive platform.

"My God, this factory is so big!"

"Rocket ~ ~ ~ I saw the rocket ~ ~"

"It should be the diamond monkey... Yes, I see that there is no zth-2c on the rocket, which is the Pinyin abbreviation of the diamond monkey!"

"It's really a monkey, eh ~ ~ ~ it's very similar to the launch vehicle I saw on TV. It doesn't seem to make any difference..."

……

When the live camera showed the segment close-up of the diamond monkey-2c carrier rocket parked in the plant, Zhuang Jianye took the opportunity to drink water to moisten his throat, and then briefly communicated with Ju Tao to see if this routine is OK.

Ju Tao didn't say anything. He put up his thumb directly at Zhuang Jianye: "brother ye, my brother is really satisfied today. You don't know the ratings and directly broke the record of our international channel. At present, in addition to the Spring Festival Gala, news broadcast, focus interview and weather forecast, brother Ye has the most live broadcast."

Zhuang Jianye drank, then handed the thermos cup soaked with medlar, wild chrysanthemum and honeysuckle to the assistant and nodded: "in that case, follow this routine."

"Well, as like as two peas," Zhuang Jianye said, "to give the best of the advantages of your interaction with the audience, and to show the characteristics of the 2C monkey carrier," Ju Tao, who was holding a fist in Zhuang Jian's business, was encouraging, and he also raised a big brother to the giant's feet. He said he had no problem. He immediately took off the sweater sweater that had been sweaty wet, and took the identical one from the assistant. Then he came to the camera, as if the journey around the diamond monkey rocket was really brought by Zhuang Jianye himself.

"Let's see what messages the housekeepers have. After all, I didn't notice all the way just now!"

Zhuang Jianye took a few breaths in his tone, immediately looked at the interactive screen, frowned slightly and read: "why does the diamond monkey look like other launch vehicles?

Ha ha ~ ~ this question is interesting. The principle of the rocket is actually very simple. It is to use the recoil principle to send the spacecraft into space at the first cosmic speed.

From this point of view, the cylinder is the most efficient, because this structure can not only reduce air resistance, but also load more fuel.

Our diamond monkey-2c launch vehicle is a typical liquid oxygen kerosene liquid rocket, with a total length of 45.6 meters. The diameter of the first two stages is 3.35 meters and the diameter of the third stage is 2.25 meters.

Four dpz-2d liquid oxygen kerosene rocket engines are used in parallel in the first stage, one dpz-2d liquid oxygen kerosene rocket engine and four adjustable dpz-1b swimming rocket engines with a single thrust of 4 tons are used in the second stage, and one dpz-1c liquid oxygen kerosene engine with a thrust of 5 tons is used in the third stage.

The total launching mass of the diamond monkey-2c carrier rocket is 228 tons, the carrying capacity of low earth orbit is 12.6 tons, the carrying capacity of geosynchronous orbit is 4.6 tons, and the carrying capacity of solar synchronous orbit is 1.2 tons.

In terms of carrying capacity, the early models of CZ-3 series, which have exceeded the space system, are basically at the same level as their improved CZ-4 models. However, compared with CZ-4 models, our launch mass is smaller and the load is larger... "

"Zhuang Zhiwang, I'm an employee of an aerospace plant. From the perspective of launch quality, your diamond monkey is at the level of CZ-3. Even cz-3a and cz-3b have not reached the level. How can you achieve the excellent carrying capacity of 12.6 tons in low earth orbit and 4.6 tons in geosynchronous orbit?

You should know that this level can be comparable to heavy launch vehicles, and even the ability to carry out space station and lunar exploration is enough. I can hardly believe that a liquid rocket with a takeoff weight of far less than 300 tons can achieve this level. "

"That's a good question!"

Seeing a professional suddenly appeared on the interactive platform, Zhuang Jianye was particularly happy: "first of all, I want to thank the audience called 'I'm an astronaut' for their enthusiastic support. The question was very professional and deep. To tell the truth, I almost asked my Aerospace understanding king.

Just kidding. First of all, it is clear that in addition to strong reasoning of the engine, another technical route to improve the load is to improve the overall thrust weight ratio, which involves the overall weight reduction of the rocket.

Generally, the shells of CZ-2, CZ-3 and CZ-4 in the aerospace field are made of ordinary aviation aluminum alloy. Because of propellant, most of them are made of corrosion-resistant alloy steel of special materials. Of course, titanium alloy is also used. However, the cost is too high and it is not cost-effective for general civil aerospace launch.

However, the weight of alloy steel is very large, which leads to a large part of the self weight of CZ-2, CZ-3 and other models, and the corresponding payload is reduced.

Take CZ-3 as an example. Its low earth orbit carrying capacity is 3.9 tons, and the geosynchronous orbit is only 1.45 tons. Therefore, in the subsequent improved model, CZ-3 can only use additional boosters and adopt the bundled structure to increase the thrust and increase the payload at the same time.

Because our diamond monkey-2c uses the most common kerosene and does not need to use special corrosion-resistant alloy steel, it can be loaded with lighter materials. In this regard, we choose t-nb525 aluminum lithium alloy developed and produced by China Tengfei aviation materials, which is not only used in kerosene fuel tank, but also used in rocket shell. Because this kind of light With the extensive use of qualitative materials, our diamond monkey-2c has lost more than 55% of its weight on the arrow body compared with the same level CZ-3.

Besides, let's not forget that the weight of our dpz-2d liquid oxygen kerosene rocket engine is less than 600kg, while the liquid rocket engine used in CZ-3 can be as high as 2.8T. How much weight can be reduced after four? What's more, we use a lot of carbon fiber composites in the fairing and internal support structure... "

When Zhuang Jianye didn't start, he was stunned by the audience in front of the TV